Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwCe3IvWPdZj77Dpe6lY+fOxYtGQVC+6VfVns0pkuY/f3nTGVLsYTmjrk0vK… (844 chars)"
  }
}